My answer the question is ...

My answer
the question is very ambiguous because it responds to her own question. Except to say that the Agronomist is lack of knowledge on Organic Matter.
The too much water on any cultivated land has the effect of rot any plant unless the soil is sandy.
It is not the fact of too excessive amount of water that is of importance, but especially the lack of fertilizer that does not contain the clay soil.
Water and clay soil will clump of roots and suffocate.
There is no need software to illuminate it.
Even good drainage there will nothing. Question: Can we know the height of the clay layer?
There is a solution 'ecological' in itself but which will turn against productivity is infiltration hole perforation beyond the clay layer.
But each watering will lose over 80% of its effectiveness, therefore zero, and infiltration wells will dry up the surrounding land (their goal)
A biological solution is planting a biodiversity whose root will seep into the soil and subsoil by its need for veganism Biodiversity fixing strength, such large tree.
Another solution that I practice with my concept of Biological Remediation, is as follows:
The upgrading of wastewater for productive organic farming.
Make the culture surface may require root of landfill. Drizzle with wastewater containing fine particles of organic matter in suspension which will colonize the clay soil in time. Each watering this organic matter will penetrate slightly into the ground and set.
Thus the soil will become in time a very fertile ground.
But it is a procedure a few years 30/40 years. Question Where in the world do you find this issue?